Playaensis Circumfibria Guide
Credit: Loren Bahls
  1. Longitudinal ribs present
  2. Valves panduriform, with slightly gibbous central margin
  3. Central area circular

Playaensis circumfimbria has small panduriform valves with a slightly gibbous central margin. The apices are apiculate. The central area is relatively large and circular. Distinct longitudinal ribs are present.

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